A major power outage at Atlanta's Hartsfield-Jackson International airport on Sunday has delayed several flights to and from Louisville International Airport.

The FAA said it ordered a ground stop for flights into the airport due to the impact of the outage on the airport's terminals, according to USA TODAY. A ground stop means flights to the airport are held at departure airports across the nation.

Around 4 p.m., immediately after the Atlanta outage, three departing flights and three arriving flights were delayed to the Atlanta airport as a result, according to Natalie Chaudoin, Public Relations Director for Fly Louisville. All of those flight have now been cancelled.